한국거래소 Next-generation market system, EXTURE + Post-Mock Market Operation Plan [Feb 24 th ~ 27 th ]

2 한국거래소 Market Operation Date and Hours > Date Feb 24 th (Mon) Feb 25 th (Tue) Feb 26 th (Wed) Feb 27 th (Thu) Batch Data As of Feb 21 st As of Feb 24 th Last trading day for K200 FUT/K200 OPT/KOSTAR FUT/ Equity FUT/Equity OPT (Mar) Date of placing order Business date Member firm places an order by business date (date checked) while batch data applies for the specific date (Feb 21 st, Feb 24 th ) Test for last trading day is available for 3 days between Feb 25 th (Tue) and 27 th (Thu)

3 한국거래소 Market Operation Hours > Summary Major Board EventsTime SPOT Pre-Off Hours Session Start 11:00 End 12:00 Regular Session Start 11:30 End of Opening Single Price 12:30 End of Closing Single Price 17:00 Post-Off Hours Session Start of Off-Hours Session Closing Price 17:00 Execution of Off- Hours Session Closing Price 17:10 Start of Off-Hours Session Single Price 17:30 Execution of Off- Hours Session Single Price 17:45 End of Off-Hours Session Single Price 18:00 Major Board EventsTime DERIVATIVESDERIVATIVES Pre-Market Negotiated Trade Start 11:00 End 12:00 Regular Session Start 11:30 End of Opening Single Price 12:30 End of Closing Single Price 18:00 Negotiated Trade Start of Negotiated Trade 12:40 End of Negotiated Trade 17:40 Lean Hog Futures Market Start 12:45 End of Opening Single Price 13:45 End of Closing Single Price 18:00 Bond Regular Start 11:30 End of Opening Single Price 12:30 End 18:00 Small Start 11:30 End of Opening Single Price 12:30 End of Closing Single Price 16:30 KTS/ REPO Start 12:30 End 18:00 Member firm places an order by business date (date checked) while batch data applies for the specific date

4 한국거래소 Market Operation Hours > SPOT Member firm places an order by business date (date checked) while batch data applies for the specific date SPOT 11:0012:00 11:3012:3016:3016:5017:00 17:1017:3018:00 19:00 17:45 2 nd 17:0017:30 1 st Pre-Off Hours Session Regular Session Post-Off Hours Session Batch Transmission/ Reception Start End End of Opening Single Price End of Treasury Stock Order Start of Closing Single Price End of Closing Single Price Start of Off-Hours Session Closing Price Execution of Off-Hours Session Closing Price Start of Off-Hours Session Single Price End of Off-Hours Session Single Price Execution of Off-Hours Session Single Price

5 한국거래소 Market Operation Hours > Derivatives Batch Transmission/ Reception Batch Transmission/ Reception Deriva- tives 11:3012:3017:5018:00 11:0012:00 18:0019:00 Negotiated Trade (Block Trade, EFP, FLEX) Regular Issue Negotiated Trade (Block Trade, EFP, FLEX) Regular Issue Lean Hog Futures Market Lean Hog Futures Market CME 20:00 05:00(+1) Regular Session (Last Trading Day Issue) Regular Session (Last Trading Day Issue) Start End of Last Trading Day 11:3012:3017:35 In case K200 Fut/Opt KOSTAR Futures Equity Fut/Opt meet the last trading day In case K200 Fut/Opt KOSTAR Futures Equity Fut/Opt meet the last trading day Regular Session Pre-Market Negotiated Trade Member firm places an order by business date (date checked) while batch data applies for the specific date 12:4513:4517:5018:00 Start End of Opening Single Price Start of Closing Single Price End of Closing Single Price 12:4017:40 Start of Negotiated Trade End of Negotiated Trade End of Opening Single Price Start End of Opening Single Price Start of Closing Single Price End of Closing Single Price Start of Negotiated Trade End of Negotiated Trade

6 한국거래소 Market Operation Hours > Bond Member firm places an order by business date (date checked) while batch data applies for the specific date 11:3012:3016:0016:30 11:3018:00 12:3018:00 16:3017:30 16:30 12:30 16:3018:00 12:30 Regular Market Small Regular KTS/ REPO Foreigner Small Trade (non-price) Foreigner Small Trade (non-price) Convertible Bond, Small Trade (after market closing) Convertible Bond, Small Trade (after market closing) Bond Report Trading Bond Report Trading Bond Yield Bond Start End of Opening Single Price Opening of Closing Single Price End of Closing Single Price Start End End of Opening Single Price Start End